Reclaimers

Reclaimer types: Which one is best for you?

Choosing the right reclaimer depends on your material handling and homogenization (blending) requirements. Boom-type bucket-wheel reclaimers are suitable for medium to very high flow rates, whilst bridge-type bucket wheel reclaimers are more suited to the blending of material with medium to high flow rates. Drum reclaimers excel at homogenizing materials for demanding processes, particularly iron ore and coal. Carefully consider your specific application requirements to determine the best reclaimer for your operation.

All TAKRAF machines are specifically designed to our client's requirements and incorporate various solutions according to their specific application.

Can't find what you are looking for? Then take a look at our combined stacker and reclaimers or at TAKRAFs scraper reclaimers.

Boom-type bucket-wheel reclaimers

TAKRAF boom-type bucket-wheel reclaimers are suitable for medium to very high flow rates. In some countries, such boom-type machines are also called “balanced machines”, referring to a machine that boasts some form of counterweight in its design. Our boom-type bucket-wheel reclaimers cover the following flow rates and sizes:

• Reclaiming capacity: 500 t/h to 20,000 t/h
• Rail gauge: 6 m to 20 m
• Boom length: 25 m to 60 m

Design features of boom-type bucket-wheel reclaimers

In applications involving low or medium flow rates and/or short boom lengths, machine designs in which the bucket-wheel and counterweight boom are combined in a fixed rocker arrangement are generally preferred, as this arrangement results in a reduced number of pivot joints.

Where higher flow rates and/or longer boom lengths are required, we prefer a machine design in which the bucket-wheel and counterweight boom are combined in a pantograph arrangement. The pantograph arrangement ensures that with large boom loads, minor changes in the point of balance are stabilized, which has a significantly positive impact on machine steadiness and tilt safety. A drawback with this design however is the increased number of pivot joints.

Automation options

Most of our boom-type bucket-wheel reclaimers are semi-automated. However, we can supply fully automated machines too. Fully automated machines boast advanced control systems and sensor logic and are monitored from a central control room, eliminating the need for a control cabin on the machine.

Bridge-type bucket-wheel reclaimers

TAKRAF bridge-type bucket-wheel reclaimers are more suited to applications where blending is important and material needs to be reclaimed with medium to high flow rates. Our bridge-type bucket-wheel reclaimers cover the following flow rates and sizes:

• Reclaiming capacity: 300 t/h to 12,000 t/h
• Rail gauge: 30 m to 60 m

Design features of bridge-type bucket-wheel reclaimers

For higher flow rates and/or larger particle sizes, we strongly suggest a machine configuration in which the bridge is mounted through the bucket-wheel. In this manner, power transmission between bucket-wheel trolley and bridge is enhanced which has a positive effect on machine life.

Configurations include the number of mounted bucket-wheel trolleys and their arrangement. Two carriages can increase material recovery and homogenization and can also be mechanically linked for a common drive system. However, we prefer to install each carriage with their own individual drive. In such instances, our proprietary TAKRAF speed controller improves the efficiency of the interaction between the carriages.

Machines can be designed for one or two directional reclaiming and all our machines are fully automated.

Drum reclaimers (barrel reclaimers)

Drum reclaimers (also known as barrel reclaimers) are ideal for homogenizing and blending of bulk material for sophisticated downstream processes, especially for iron ore and/or coal processing. Our machines can be designed for one or two working directions.

Design features of drum reclaimers

Several buckets can be arranged in parallel rows with these symmetrical buckets swiveling automatically in the pre-selected working direction. These buckets continuously remove thin material layers from the stockpile cross-section as they rotate and discharge onto a belt conveyor within the drum. The machine is equipped with rakes. These rakes are equipped with prongs or scraper rods, depending on particle size of material to be reclaimed, and create a continuous flow of material on the escarpment of the pile over the entire width directly into the reclaiming buckets.

High-strength, hardened materials ensure a long service life, even when handling abrasive materials. For extremely low temperatures, rakes can have hardened tines to break frozen surfaces.

Excellent mixing and blending

The drum reclaimer achieves excellent mixing and blending through:

• Continuous flow and trickling of material on the escarpment across the entire stockpile width
• Simultaneous reclaiming of thin layers of material over the entire stockpile cross-section
• Overlapping discharge of material onto the cross-belt conveyor

Our typical drum reclaimers cover the following flow rates and sizes:

• Nominal reclaim capacity: up to 6,000 t/h
• Stockpile width: 30 m to 40 m
• Stockpile height: up to 21 m
• Rail gauge: 30 m to 56 m

Reclaiming in two different directions

For two-directional reclaiming, machines have two rakes, one on each side, activated automatically based on drum rotation.

Our drum reclaimers are fully automated and boast a variety of sensors, which enables them to be controlled and monitored from a central control room.